Patents by Inventor Charles E. Chastain

Charles E. Chastain has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4589355
    Abstract: The carbon content of the residue from combustion of agricultural waste products and the fly ash content of the gaseous exhaust is controlled by regulated inflow of the combustion supporting air in a plurality of flow stream at different velocities to enhance fluidization of particulate feed in a bed being raked by a rotating sweep arm inducing radially outward movement of combustion residue into a collecting zone from which the residue enters a discharge duct. The particulate feed is dropped at location in the combustion chamber above the bed in alignment with the inflow stream of maximum velocity.
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: May 20, 1986
    Assignee: PRM Energy Systems, Inc.
    Inventors: Charles E. Chastain, Donald R. King
  • Patent number: 4517905
    Abstract: The carbon content of the residue from combustion of agricultural waste products is controlled and the fly ash content of the gaseous exhaust minimized by utilizing a portion of the combustion supporting air to enhance fluidization of the waste products above a fixed bed while being agitated by a rotating sweep arm inducing radially outward movement toward a residue collecting zone from which a sweep arm paddle displaces the residue into a discharge duct. The waste product feed is conveyed at a uniform weight flow rate to a central location in the combustion chamber above the bed from which of the feed is dropped onto the bed.
    Type: Grant
    Filed: February 10, 1983
    Date of Patent: May 21, 1985
    Assignee: PRM Energy Systems, Inc.
    Inventors: Charles E. Chastain, Donald R. King